Lobster Sports elite grand five tennis ball machine The Forehand Plus drill throws balls with moderate topspin and more arc giving the player more time to set-up for a forehand shot. The Attack/Defend drill throws balls using greater ball speed and minimal spin making the player move in and out of the corners and across the baseline quickly. The Approach drill throws balls with various spins and arcs aimed for the player to approach into the court after playing an aggressive ball. This drill will promote correct approach and net position, along with the proper covering of the line. Includes 1-Amp Fast Charger Optional Accessories Available: 20-Function Wireless Grand Remote Control 3-Amp Premium Fast Charger Storage Cover External Battery Pack